Don't refer to stop_machine() in the CPU hotplug path, since we are going
to get rid of it. Also, move the comment referring to callback adoption
to the CPU_DEAD case, because that's where it happens now.
Signed-off-by: Srivatsa S. Bhat <srivatsa.b...@linux.vnet.ibm.com>
---
kernel/rcutree.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index e441b77..ac94474 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -2827,11 +2827,6 @@ static int __cpuinit rcu_cpu_notify(struct
notifier_block *self,
break;
case CPU_DYING:
case CPU_DYING_FROZEN:
- /*
- * The whole machine is "stopped" except this CPU, so we can
- * touch any data without introducing corruption. We send the
- * dying CPU's callbacks to an arbitrarily chosen online CPU.
- */
for_each_rcu_flavor(rsp)
rcu_cleanup_dying_cpu(rsp);
rcu_cleanup_after_idle(cpu);
@@ -2840,6 +2835,10 @@ static int __cpuinit rcu_cpu_notify(struct
notifier_block *self,
case CPU_DEAD_FROZEN:
case CPU_UP_CANCELED:
case CPU_UP_CANCELED_FROZEN:
+ /*
+ * We send the dead CPU's callbacks to an arbitrarily chosen
+ * online CPU.
+ */
for_each_rcu_flavor(rsp)
rcu_cleanup_dead_cpu(cpu, rsp);
break;
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